.main .banner {
  width: 100%;
  height: 600px;
}
.main .banner img {
  width: 100%;
  height: 600px;
}
.main .course-list2 {
  display: flex;
  margin-top: 60px;
  margin-bottom: 20px;
  width: 1200px;
  height: 280px;
  border-bottom: 1px solid #e4e7eb;
}
.main .course-list2 .course-item2 {
  width: 300px;
  height: 280px;
  padding-top: 60px;
  text-align: center;
}
.main .course-list2 .course-item2 img {
  width: 120px;
  height: 120px;
}
.main .course-list2 .course-item2 h3 {
  font-size: 24px;
  font-weight: 400;
  margin-top: 30px;
  letter-spacing: 0px;
  line-height: 28.13px;
  color: #333333;
}
.main .teacher-list {
  display: inline;
  width: 1200px;
}
.main .teacher-list .teacher-item {
  display: flex;
  margin-bottom: 20px;
  padding: 40px;
  width: 1200px;
  height: 245px;
  opacity: 1;
  border-radius: 20px;
  background: #f7f9fa;
}
.main .teacher-list .teacher-item img {
  margin-right: 50px;
  width: 164px;
  height: 164px;
  border-radius: 50%;
}
.main .teacher-list .teacher-item .intro h4 {
  display: flex;
  width: 100%;
  height: 26px;
  font-size: 22px;
  font-weight: 400;
  line-height: 26px;
  color: #333333;
}
.main .teacher-list .teacher-item .intro h4 span {
  align-items: center;
  margin-left: 20px;
  font-size: 16px;
  font-weight: 400;
  color: #666666;
}
.main .teacher-list .teacher-item .intro p {
  margin-top: 20px;
  width: 886px;
  height: 96px;
  font-size: 16px;
  font-weight: 400;
  letter-spacing: 2px;
  line-height: 24px;
  color: #333333;
}
.main .teacher-list .teacher-item:hover {
  background: #1842b6;
}
.main .teacher-list .teacher-item:hover h4,
.main .teacher-list .teacher-item:hover h4 span,
.main .teacher-list .teacher-item:hover p {
  color: white;
}
